Using the Nikon Coolscan 4000ED and Nikon Scan 4.0.2 software in
standalone mode: If one chooses to use the Color Management System,
one must select a color space profile for the calibrated RGB model from
among 11 profiles presented on the menu. My question is simply this:
Is there some way I can induce the software to use a working space RGB
profile that is not included in the menu? (e.g. ProPhoto or
EktaSpace). Naturally assuming I have the required profile stored
somewhere on my hard disk.

To be perfectly clear, I am well aware that I can open an image in
PhotoShop and assign or convert it to any working space profile of my
choice. I specifically wish to avoid this approach. I am looking for a
method which will cause the Nikon software to translate the raw data
using its (built in) device dependent scannner profile directly into a
device independent working space of my choosing.

Many thanks for your consideration, and much more thanks if you can
help.

Cheers/Mike

Well, this won't asnwer your question about Nikon Scan, but it is very easy
to load an ICC profile using VueScan.
If you can get the Coolscan to appear in the [Scanners and camera] list of
the Windows Control Panel, there may be an option to load profiles there,
just like with printers, but mine doesn't show up in that list.
--
Guillaume Dargaud
http://www.gdargaud.net/Photo/

"Learn to jam, learn to bleed, learn when to turn over the lead !" -
Rex Pieper.